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NASA’s robots will either explore Titan or study a comet
NASA's New Frontiers program consists of a series of unmanned missions with the intent of exploring the solar system. The missions are designed to target specific goals as defined by the broader planetary community. Yesterday, NASA announced the two finalists for a robotic New Frontiers mission, with a planned launch in the mid-2020s. One is a sample return mission to a comet; the other is to explore Saturn's moon Titan.
What's next for NASA as Cassini's mission comes to a close
After nearly two decades in space and 11 years studying Saturn (and its myriad moons), the Cassini spacecraft ended its mission at roughly 6:30 am Eastern on Friday when it slammed into the gas giant's suffocating atmosphere. It was an auspicious end for the $3.4 billion spacecraft, argues Curt Niebur, the program scientist for Cassini at NASA headquarters. "I find it exhilarating, myself," he said. "Instead of just crashing it into something and saying we're done, we're actually going after science questions that we never intended Cassini to answer. And we'll be able to address those. It's fantastic."
NASA is reviewing candidates for its next Solar System mission
NASA might be focusing on Mars recently, but it hasn't forgotten the rest of the Solar System. The agency has begun reviewing the 12 proposals it received for the New Frontiers program, the same one that gave rise to New Horizons, Juno and other notable unmanned missions. All the proposals will go through scientific and technical probing with the next seven months, with one or a few moving on to the next phase of the selection process. NASA will choose the best mission to develop in 2019 and will spend up to $1 billion to make it a reality.
